Lumber-stamping machine.



B. E. SIMPSON.

LUMBER STAMPING MACHINE. APPLICATION FILED JUNE 9,19l6.

11,Q25,5 1 3s Patented May 8, 1917.

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B. E. SIMPSON.

LUMBER STAMPING MACHINE.

APPLICATION FILED JUNE 9,1916.

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BERT E. SIMPSON, OF CHASSELL, MICHIGAN.

LUMBER-STAMPING MACHINE.

Specification of Letters Patent.

Patented May 8, 1%17.

Application filed June 9, 1916. Serial No. 102,730.

To all whom 2'15 may concern:

Be it known that I, BERT E. SIMPsON, a citizen of the United States, residing at Chassell, in the county of I-Ioughton and State of Michigan, have invented new and useful Improvements in Lumber-Stamping Machines, of which the following is a speci fication.

In mills Where lumber is planed, sawed or otherwise treated for various owners, confusion and loss to certain parties is often the result of failure on part of the responsible person to identify the lumber belonging to the respective owners.

It is therefore the chief characteristic of the invention to provide a mechanism for marking or stamping the lumber with certain indicia for the purpose of identification.

In carrying out the invention I provide a mechanism of the above mentioned character which is operated by the separate pieces of lumber as the same are discharged from the planer or other woodworking machine.

Another important object of the invention is to provide a mechanism for the above mentioned purpose which is automatically adjustable to accommodate itself to lumber of any thickness.

With the above and other objects in view which will appear as the following description is read in connection with the accompanying drawings, the invention resides in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this specification like numerals of referenceindicate similar parts in the several views and wherein Figure 1 is a top plan view.

Fig. 2 is a sectional view taken on line 22 of Fig. 1 looking in the direction of the arrow.

Fig. 3 is an enlarged end elevation.

Fig. 4 is an enlarged detail view of the cam disk.

Before entering into a detail description of what is herein shown I desire to have it understood that the same is merely illustrative of the preferred embodiment of the invention, to which I do not limit myself,

'and that such changes may be resorted to scope of chine (not shown). Journaled for rotation upon the support A is a main operating shaft 10 disposed transversely of the support A and having fixed thereon at an ap propriate point in its length a gear wheel" 11 for rotation with the shaft. Mounted for vertical swinging movement upon the shaft 10 is a yoke 12 the parallel limbs 13 of which are disposed at the opposite sides of the gear wheel 11 and have their extremities journaled upon the shaft 10. Arranged between the limbs 13 of the yoke and connected therewith for rotation is an auxiliary operating shaft 14 disposed in spaced parallelism with the shaft 10, and having fixed thereon a gear wheel 15 which meshes with the gear wheel 11. Also mounted upon the shaft H is a roller 16 which latter is fixed relatively to the shaft to impart a rotary movement thereto as the roller is operated by the separate pieces of lumber passing beneath the same in the manner which will hereinafter be more fully described.

Disposed in advance of the shaft 10 is a fiat spring 17 having one end secured to the support A beyond one extremity of the shaft and extendingtransversely of the support substantially parallel with respect to the shaft.

The spring is of substantially L-shaped formation with its short limb 18 extending upwardly and terminating to provide a lateral offset portion 19 which bears upon the upper surface of a disk 20. The disk is rotatably mounted upon a vertical shaft 21 arranged immediately adjacent the opposite extremity of the shaft 10, and which shaft 21 is journaled in suitable bearings 22. Secured to the under side of the disk is a ciran v.11:

cumferential gear 23 which meshes with a bevel gear 24: fixed upon the adjacent end of the main operating shaft 10 whereby the disk is rotated simultaneously with the rotation of the main shaft 10. The disk 20 has a cam-shaped surface 25 with the lowermost point of which the offset portion 19 of the spring is normally engaged. Manifestly as the disk is rotated the spring 17 is gradually elevated until the highest point of the cam surface 25 passes from beneath the offset portion 19 of the spring, which latter through its inherent quality forcibly gravitates to normal position bringing the free terminal of the offset portion 19 from the highest to the lowest point of the cam surface 25 of the disk. This operation takes place once during each revolution of the disk 20, and as the spring forcibly gravitates to its normal position the lumber passing beneath the mechanism is stamped or marked with a suitable characteristic to distinguish the lumber of one owner from that of another, by means of the die 26 removably secured to the spring at an appropriate point in'itslength. Of course the die will bechanged for different owners.

In practice as the lumber is discharged from the particular machine through which it has been passed for treatment, the separate pieces of lumber are pushed by the machine under the roller 16 thereby rotating the latter and also the'shaft is upon which the roller is fixed. With the rotation of the shaft 14, the main operating shaft is simultaneously rotated through the instrumentality of the respective gears 11 and 15, and as the main operating shaft 10 is rotated the bevel gear connection between the latter and the disk 20 imparts rotary movement to the said disk. lhe spring 17 is then operated-in the manner above mentioned for the purpose of marking or stamping the lumber. In addition to the fact that the mechanism disclosed is susceptible for use in connection with the various forms of woodworking machines, it will be manifest that the mechanism can also be 03erated by the lumber being pushed beneath the roller by the operator. Again, it is to be borne in mind that the yoke 13 is journaled upon the main shaft 10 for vertical swinging movement, which permits the roller 16 and the other eoiiperating parts carried by the yoke to be moved toward and away from the support A, whereby the mechanism is susceptible for use with lumber of any thickness.

What is claimed is 1- 1. An article stamping machine comprising a horizontally disposed rotary shaft, stannoing mechanism operable upon rotation of the shaft, a second shaft mounted for rotation, gearing connecting the shafts for simultaneous rotation, and a roller fixed upon the second shaft for rotating the latter and operated by the article to be stamped.

2. An article stamping machine compris-. ing a horizontally disposed rotary shaft, stamping mechanism operable upon rotation of said shaft, a yoke-mounted on the shaft, a second shaft journaled on said yoke, gearing connecting the respective shafts for simultaneous rotation, and means under the control of the article to be stamped for rotating said second shaft.

3. An article stamping machine comprising a horizontally disposed rotary shaft, stamping mechanism operable upon rotation of said shaft, a yoke mounted on said shaft, a second shaft journaled on the yoke, gearing connecting said shafts for rotation, and a roller fixed upon the shaft and operated by the article to be stamped for rotating said second shaft.

4:. An article stamping machine comprising a horizontally disposed shaft, a stamping mechanism operable upon rotation of said shaft, a yoke, a second shaft journaled in the yoke, gearing connecting the respective shafts for rotation, a roller on said second shaft for rotating the latter and operated by the article to be stamped, and said yoke being mounted for vertical swinging movement for the purpose described.

5. An article stamping machine comprising a rotary shaft, stamping mechanism including av horizontally disposed flat resilient arm secured at one end to a support, means cooperating with the opposite end of the arm for elevating and tensioning the latter as the shaft rotates, said means permitting the arm to forcibly gravitate to stamping position, and means under control of the article to be stamped for rotating said shaft.

6. An article stamping machine comprising a rotary shaft, stamping mechanism including a horizontally disposed angular shaped resilient arm having one end secured to a support, means cooperating with the opposite end of the arm for elevating and tensioning the latter as the shaft rotates, said means permitting the arm to forcibly gravitate to stamping position, and means under control of the article to be stamped for rotating said shaft.

7. An article stamping machine comprising a rotary shaft, stamping mechanism including a flat resilient arm having one end secured to a support and its opposite end offset, a cam mounted to rotate in a horizontal plane and operable on rotation of said shaft, said cam engaging the ofiset extremity of said arm for elevating and tensioning the latter, and permitting the arm to forcibly gravitate to a standing position, and means for rotating said shaft. V

8. An article stamping machine comprising a rotary shaft,stamping mechanism ineluding a fiat resilient arm having one end secured to a support and its opposite end offset, a cam mounted to rotate in a horizontal plane and operable on rotation of said shaft, said cam engaging the offset extremity of said arm for elevating and tensioning the latter, and permitting the arm to forcibly gravitate to a standing position, and means under the control of the article to be stamped for rotating said shaft.

In testimony whereof I affix my signature.

BERT E. SIMPSON.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

